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Urban waste cyclone combustion system and coupled coal-fired power plant generating system and method thereof

A cyclone combustion, coal-fired power station technology, applied in the combustion method, combustion type, combined combustion mitigation and other directions, to achieve the effects of reducing pollution, high degree of harmless treatment, and high efficiency utilization

Pending Publication Date: 2018-07-13
SHANGHAI POWER EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is how to use large-scale coal-fired units to mix and burn municipal solid waste, so as to reduce the processing cost of municipal solid waste, improve the utilization efficiency of the calorific value of municipal solid waste, and reduce the pollution of large-scale coal-fired boiler ash at the same time

Method used

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  • Urban waste cyclone combustion system and coupled coal-fired power plant generating system and method thereof
  • Urban waste cyclone combustion system and coupled coal-fired power plant generating system and method thereof

Examples

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Embodiment 1

[0039] figure 1 It is a schematic diagram of a municipal solid waste cyclone combustion system that adopts cyclone combustion to co-burn municipal solid waste. The municipal solid waste cyclone combustion system includes a coal-fired boiler 8 and a cyclone furnace 5, and the cyclone furnace 5 is connected to the coal-fired boiler 8 through a flue.

[0040]The top of cyclone furnace 5 is provided with waste fuel inlet 1, and the surrounding wall of cyclone furnace 5 is provided with hot air inlet 2, pulverized coal primary air inlet 3, and secondary air inlet 4 successively from top to bottom. The lower part of the garbage fuel inlet 1 and the upper part of the hot air inlet 2 are equipped with guide blades. The lower part of the cyclone furnace 5 is provided with a flue gas outlet, and the flue gas outlet is connected to the coal-fired boiler 8 through a flue, and a slag collection tube bundle 6 is arranged in the flue connecting the cyclone furnace 5 and the coal-fired boiler...

Embodiment 2

[0047] figure 2 It is a schematic diagram of the municipal solid waste cyclone combustion coupled coal-fired power station power generation system formed by the municipal solid waste cyclone combustion system coupled with the coal-fired power station described in Example 1. The municipal solid waste cyclone combustion coupled coal-fired power station power generation system includes the embodiment 1 In the municipal solid waste cyclone combustion system described above, the coal-fired boiler 8 is connected to the outlet of the fan 12 and the exhaust gas outlet of the secondary garbage screening system 17 through pipelines, and the inlet of the fan 12 is connected to the garbage storage bin 13 to ensure the negative pressure of the garbage storage bin 13. Prevent the garbage smell from spreading outward and affecting the environment. A low-temperature reheater 9, an economizer 10, an air preheater 11, and a flue gas treatment device 29 are sequentially arranged in the tail flu...

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Abstract

The invention provides an urban waste cyclone combustion system. The urban waste cyclone combustion system comprises a cyclone furnace, wherein a waste fuel inlet is formed in the top of the cyclone furnace, and a hot air inlet, a coal dust primary air inlet and a secondary air inlet are formed in the peripheral wall of the cyclone furnace in sequence from top to bottom; a fume outlet is formed inthe lower part of the cyclone furnace, and the fume outlet is connected with a coal-fired boiler through a flue; and a slag discharge opening is formed in the bottom of the cyclone furnace, and a liquid slag granulating water tank is arranged below the slag discharge opening. The invention further provides an urban waste cyclone combustion method. The invention further provides an urban waste cyclone combustion coupled coal-fired power plant generating system and a method. According to the urban waste cyclone combustion system, the cyclone furnace coupled with the large coal-fired boiler is used as an urban household waste treatment system for the first time, heat of urban household waste is effectively used, and additionally, the waste treatment cost is reduced; ash generated after the urban household waste is burnt can be collected through the burning of the cyclone furnace, so that the ash pollution of the large coal-fired boiler is reduced; and the equipment investment is reduced,and great economic and social benefits are obtained.

Description

technical field [0001] The invention relates to the technical field of garbage utilization, in particular to a municipal garbage cyclone combustion system and a power generation system coupled with a coal-fired power station. Background technique [0002] With the rapid development of my country's social economy, the acceleration of urbanization and the rapid improvement of people's living standards, the discharge of municipal solid waste is increasing year by year. It is estimated that by 2020, the annual output of municipal solid waste in my country will be close to 200 million tons. At present, two-thirds of the cities in China are surrounded by garbage. "Garbage siege" has become one of the important factors restricting the development of many cities and affecting the quality of life of citizens. Municipal solid waste not only occupies a large amount of land and destroys the urban landscape, but also causes continuous pollution to the environment on which human beings li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/32F23G5/04F23G5/44F01K13/00F01D15/10
CPCF01D15/10F01K13/00F23G5/04F23G5/32F23G5/44Y02E20/12
Inventor 张涛朱一飞陶丽蒋晓锋刘明勇曹建文黄辉武吴明州
Owner SHANGHAI POWER EQUIP RES INST
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